TM 10--3510--221--24
0072 00--1
HEATING SYSTEM FAILURE
0072 00
THIS WORK PACKAGE COVERS:
Troubleshooting Heating System Failure
INITIAL SETUP:
Maintenance Level
Materials/Parts
Unit
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
Power must be applied at main control
Multimeter (Item 2, WP 0272 00)
enclosure (WP 0010 00).
NOTE
Heater will not turn on and stay on unless a load is available to remove heat from the
thermal fluid. In order for heater to operate long enough to troubleshoot a problem, there
must be water in the still or both dryers must have a DRY ONLY cycle in progress.
1. Observe operator panel display.
Is ”HEATING SYSTEM FAILURE” message displayed?
YES Go to step 3.
NO Go to step 2.
2. Use maintenance menu to test heating system (WP 0010 00). Observe heater operation and operator
panel display.
Does heater shut off with ”HEATING SYSTEM FAILURE” message?
YES Go to step 3.
NO Return to normal operation.
3. Open door on heater enclosure.
4. Observe POWER indicator on flame programmer (FP300).
Is POWER indicator on or slowly flashing on and off?
YES Go to step 5.
NO Go to step 10.
5. Observe ALARM indicator on flame programmer (FP300).
Is ALARM indicator on?
YES Go to step 6.
NO Check wire connections between FP300 and TB7, TB7 and SSR PCB3, and SSR PCB3 and
PCB 7 for shorted connection. Repair as necessary.
6. Press FP300 RESET switch on side of heater enclosure.
